Published: May 13, 2024
Language: Английский
Science Advances, Journal Year: 2024, Volume and Issue: 10(22)
Published: May 29, 2024
Origami-inspired metamorphous structures can adjust their shapes and mechanical behaviors according to operational requirements. However, they are typically composed of nonrigid origami, where required facet deformation complicates actuation makes them highly material dependent. In this study, we present a type origami structure modular bistable units, each which is rigid origami. The elasticity within the creases switching mountain valley crease lines enable it have bistability. resultant has multistability, allowing switch among multifarious configurations with programmable profiles. This concept was validated by potential energy analysis experiments. Using concept, developed robotic limb capable both lifting gripping through configuration changes. Furthermore, used units construct metamaterial whose properties could change variation configurations. These examples demonstrate concept's remarkable versatility for many applications.
Language: Английский
Citations
18
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)
Published: June 22, 2024
By incorporating soft materials into the architecture, flexible mechanical metamaterials enable promising applications, e.g., energy modulation, and shape morphing, with a well-controllable response, but suffer from spatial temporal programmability towards higher-level intelligence. One feasible solution is to introduce snapping structures then tune their responses by accurately tailoring stress-strain curves. However, owing strongly coupled nonlinearity of structural deformation material constitutive model, it difficult deduce curves using conventional ways. Here, machine learning pipeline trained finite element analysis data that considers those nonlinearities tailor metamaterialfor on-demand response an accuracy 97.41%, conforming well experiment. Utilizing established approach, absorption efficiency snapping-metamaterial-based device can be tuned within accessible range realize different rebound heights falling ball, actuators spatially temporally programmed achieve synchronous sequential actuation single input. Purely relying on structure designs, tailored increase devices' tunability/programmability. Such approach potentially extend similar nonlinear scenarios predictable or intelligent responses.
Language: Английский
Citations
18
Research, Journal Year: 2023, Volume and Issue: 6
Published: Jan. 1, 2023
Miniature magnetic-driven robots with multimode motions and high-precision pose sensing capacity (position orientation) are greatly demanded in situ manipulation narrow opaque enclosed spaces. Various magnetic have been carried out, whereas their deformations normally remain single mode, the lack of robot's real-time status leads to its beyond-sight remagnetization being impossible. The function integration motion is still challenge. Here, a multimotion thin-film robot created novel multilayer structure layer covered by heating-sensing conductive layer. Such not only can segmentally on-demand heat for magnetization reprogramming but also precisely detect from electrical-resistance effect creating small deformation under preset fields. Under sensing, necessary motions, i.e., swimming, rolling, crawling, obstacle-crossing, achieved field BRepr 10 mT, poses an accuracy ± 3 mm position 2.5° orientation obtained even low strength BSens 5 which combined help realize accurate out-of-sight manipulations space environment. Finally, gastroscope stomach drug delivery has demonstrated more gastrointestinal medical treatments.
Language: Английский
Citations
23
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(11), P. 5956 - 6010
Published: Jan. 1, 2024
Soft actuators, pivotal for converting external energy into mechanical motion, have become increasingly vital in a wide range of applications, from the subtle engineering soft robotics to demanding environments aerospace exploration. Among these, electrochemically-driven actuators (EC actuators), are particularly distinguished by their operation through ion diffusion or intercalation-induced volume changes. These feature notable advantages, including precise deformation control under electrical stimuli, freedom Carnot efficiency limitations, and ability maintain actuated state with minimal use, akin latching skeletal muscles. This review extensively examines EC emphasizing classification based on diverse material types, driving mechanisms, actuator configurations, potential applications. It aims illuminate complicated mechanisms different categories, uncover underlying connections, reveal interdependencies among materials, performances. We conduct an in-depth analysis both conventional emerging casting forward-looking lens trajectories pinpointing areas ready innovation performance enhancement strategies. also navigate challenges opportunities within field, optimizing current exploring new scaling up production processes. Overall, this provide scientifically robust narrative that captures sets trajectory future rapidly advancing field.
Language: Английский
Citations
9
Cell Reports Physical Science, Journal Year: 2025, Volume and Issue: unknown, P. 102402 - 102402
Published: Jan. 1, 2025
Language: Английский
Citations
1
International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110130 - 110130
Published: March 1, 2025
Language: Английский
Citations
1
Advanced Science, Journal Year: 2024, Volume and Issue: 11(14)
Published: Feb. 1, 2024
Abstract Miniature locomotion robots with the ability to navigate confined environments show great promise for a wide range of tasks, including search and rescue operations. Soft miniature robots, as burgeoning field, have attracted significant research interest due their exceptional terrain adaptability safety features. Here, fully‐soft centimeter‐scale crawling robot directly powered by fluid kinetic energy generated an electrohydraulic actuator is introduced. Through optimization operating voltage design parameters, average velocity dramatically enhanced, reaching 16 mm s −1 . The optimized weighs 6.3 g measures 5 cm in length, width, 6 height. By combining two parallel, can achieve turning rate ≈3° Additionally, reconfiguring distribution electrodes actuator, 2 degrees‐of‐freedom translational motion, improving its maneuverability narrow spaces. Finally, use soft water‐proof skin demonstrated underwater actuation. In comparison other this full softness relatively high well increased robustness recovery.
Language: Английский
Citations
8
Research, Journal Year: 2024, Volume and Issue: 7
Published: Jan. 1, 2024
Soft crawling robots have been widely studied and applied because of their excellent environmental adaptability flexible movement. However, most existing soft typically exhibit a single-motion mode lack diverse capabilities. Inspired by
Language: Английский
Citations
4
Advanced Intelligent Systems, Journal Year: 2024, Volume and Issue: 6(8)
Published: April 8, 2024
The micro crawling robot exhibits significant potential applications in various fields such as fault detection, disaster relief, and environmental monitoring. This article introduces a high‐performance millimeter scale driven by miniature electromagnetic linear actuator (MELA) with body length of 5–6 mm mass 80 mg. In this article, the working principle is analyzed validated, influence current, frequency, angle α between direction actuator's force surface on speed are through experiments. Results show that optimal ranges from 50° to 55°, specific current frequency identified achieve maximum for particular . When 50°, 300 mA 200 Hz, reached 20.2 Body Length s −1 (BL ). proposed can crawl at 12 BL load 110 mg, support 400 Additionally, demonstrated diverse capabilities climbing 10° slope jumping 1 obstacle, surfaces materials.
Language: Английский
Citations
4
Engineering Structures, Journal Year: 2024, Volume and Issue: 317, P. 118667 - 118667
Published: July 23, 2024
Language: Английский
Citations
4